Lead is soft and reactive, so how you store pellets affects how they shoot. Two enemies matter most: physical damage and oxidation.
Keep pellets in their original tins. The nested packaging protects delicate skirts from deforming — and a dented skirt is an inaccurate pellet. Avoid loose pellets rattling around in a pocket or pouch for long periods.
Store them somewhere cool and dry. High humidity encourages a dull oxide film to form on the lead, which can affect how the pellet engages the rifling. A sealed tin in a stable cupboard is ideal.
Handle with clean, dry hands. Skin oils and grit transfer to the pellet and, eventually, to your barrel.
